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Digiron [165]
2 years ago
11

A stone is thrown vertically upward with the velocity of 25 m/s. How long will it take to reach the maximum height?Also calculat

e the height.​
Physics
1 answer:
Ne4ueva [31]2 years ago
6 0

Answer:

Answer in the attachment above ☝☝☝

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A mirror that has a reflecting surface that is recessed inward is called concave mirror

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A ruined in a race decides to accelerate right up to the moment he crosses the line He is the initially travelling at 5m/s and a
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Answer:

S = V t + 1/2 a t^2 = 5 m/s * 5 s + .2 m/s^2 * 25 s^2 =

25 m + 5 m = 30 m     distance traveled

Vf = V + a t = 5 m/s + .4 m/s^2 * 5 s = (5 + 2) m/s = 7 m/s    final velocity

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When is the pressure of the man on the ground more – lying position or standing position? Explain.
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It is without a doubt in standing position!
“I will explain if u ask”
(Please mark brainlest if I helped u a bit)
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Automobile airbags contain solid sodium azide, nan3, that reacts to produce nitrogen gas when heated, thus inflating the bag. 2n
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Hope you got your answer
7 0
3 years ago
What formula do I use for the second question? For number 3 how is one energy converted to the other? ( using arrows ) I get num
Fed [463]
<u>#2</u>
Use the formula ... Kinetic energy = (1/2) x (mass) x (speed)²

<u>#3 - a).</u>
sun => energy travels as electromagnetic waves => reaches Earth as
         heat & light energy.

sun => absorbed in plants => eaten by animals => animals die =>
       decay into oil in millions of years => we burn the oil to get the energy.

<u>#3 - b).</u>
food I ate for lunch => metabolized into glucose by my body
       => some of it burned in my muscles to generate energy for immediate needs
       => the rest of it stored as fat for future needs.

<u>#3 - c).</u>
flower pot rolls off the ledge => gravity does work on it all the way down,
       producing the kinetic energy it has when it hits the floor.

<u>#3 - d).</u>
oil or natural gas is burned, releasing heat energy => energy is used
       to generate electricity => electricity flows through cables from the
       power generating plant to your home => hot plate plugged into the
       wall => turns electrical energy back into heat energy => heat energy
       is conducted into the bottom of the beaker, flows through the glass
       to the inside surface => heat energy is conducted from the inside of
       the glass to the water, which gets hotter as it absorbs more energy. 
=============================

<u>Note:</u>
#1 on the sheet is wrong.
"Work = force x distance"  that's correct
But 25-kg is the <em>mass</em> of the ball, <em>not </em>the gravitational <em>force </em>on it.
The force on it is (mass) x (gravity), called its "weight".
   That's (25-kg) x (9.8 m/s²) = 245 kg-m/s² = 245 newtons .
6 0
3 years ago
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